Program Members Raise Quality of Care but Struggle to Lower Costs

Lowering health-care costs is tougher than improving the quality of care, according to first-year results from a key pilot program under the federal health law.

All of the 32 health systems in the so-called Pioneer Accountable Care Organization program improved patient care on quality measures such as cancer screenings and controlling blood pressure, according to data to be released Tuesday by the Centers for Medicare and Medicaid...